CVE-2026-7990: Insufficient validation of untrusted input in Updater

Published Apr 2, 2026
·
Updated

Chromium: CVE-2026-7990 Insufficient validation of untrusted input in Updater

Other sources

Insufficient validation of untrusted input in Updater in Google Chrome on Windows prior to 148.0.7778.96 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: Medium)

— NVD

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

— Microsoft

Credit

Google

Affected Software

6 affected componentsFixes available
Google Google Chrome (Windows)<148.0.7778.96
Google Chrome<148.0.7778.96
148.0.7778.96
All of the following
Google Chrome<148.0.7778.96
Microsoft Windows
Microsoft Edge (Chromium-based)
Patch available
Microsoft Edge<148.0.3967.54

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 148.0.7778.96
  2. Upgrade

    Upgrade Chromium/Google Chrome (Windows) to a version that resolves this vulnerability.

    Fixed in 148.0.7778.96
  3. Compensating control

    If you use Microsoft Edge (Chromium-based), note that it ingests Chromium; ensure Edge is updated to a version that includes the Chromium fix for CVE-2026-7990 to prevent the described local privilege escalation.

Event History

Apr 2, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
May 6, 2026
CVE Published
via MITRE·06:13 PM
Data Sourced
via MITRE·06:13 PM
DescriptionWeakness
Data Sourced
via NVD·07:16 PM
DescriptionSeverityWeaknessAffected Software
May 7, 2026
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
DescriptionAffected Software
May 30, 58331
Event
via FIRST·01:06 AM

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2026-7990?

The severity of CVE-2026-7990 is high with a CVSS score of 7.8.

2

How do I fix CVE-2026-7990?

To fix CVE-2026-7990, update Google Chrome to version 148.0.7778.96 or later.

3

What type of attack does CVE-2026-7990 allow?

CVE-2026-7990 allows a local attacker to perform OS-level privilege escalation via a malicious file.

4

Which software is affected by CVE-2026-7990?

CVE-2026-7990 affects Google Chrome and Microsoft Edge browsers on Windows.

5

What issue does CVE-2026-7990 relate to?

CVE-2026-7990 relates to insufficient validation of untrusted input in the Updater component.

Company

Resources

Contact

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